Coke oven charging-hole closure construction



COKE OVEN CHARG'ING-HOLE CLOSURE CONSTUCTION Filed April 7. 1957 3 Shee'ts-Sheet f. SCHMIDT COKE OVEN CHARGING*HOLE CLOSURE CONSTUCTION June ll, 1940.

s sheets-sheet 2` Filed April 7. 1937 Sfinx@ June 11, 1940. w, `www 2,203,698

` COKE OVEN CHARGING-HOLE CLO'SURE CONSTUCTION Filed April 7. 19:57 3 Sheets-Sheet 5 is the `provision of a plug on the inner chargingi Patented June 11, 1940 y 2,203,693 UNITED sTATEs PATENT 4ol-FicEl omarmd-nom cLosUnE l coNs'rnUcnoN Wilhelm Schmidh Essen, Germany, assigner, by mesne assignments,4 to Kappers Company, Pittsburgh, Pa., a` corporation of Delaware Application April 7, 1937, serial 1m13.539s

In Germany April 11,r 1936 l Claims.

The invention relates to contrivances for clos-` ing the charging holes in the roof `of cokingby removable covers, of which twoor more of themare arranged above each other, in the1 charging opening.

in such alway, that a gas-tight t of thecharg ing-holes is assured. thus resultingin a reduction of the heat losses through thecharging-holes `andilnally an object is the provision of a construction which simplifies the attendance to the charging-hole closures.

f An essential feature of the present invention insofar as both `the charging-hole covers fit ex-` actly quite independent from oneanother, on their seats or on the `sealing surfaces provided therefor, at the upper edge of the charging hole.

On `account of the unturnable connection of the `covers relative to each other, it is possible also` to rotate the inner cover by the `turning `the outer cover, by which are avoided uneven faces or deposits at the sealing faces of the charging holes. e

Another characteristic feature of my invention hole cover at its bottom, made of `refractory material, which is held by theclamps partially surrounding the plug, so that it can be removed i from the inner charging-hole cover.

Still `further objects of my present invention maybe `taken from the following description of a preferred embodiment thereof, on the lines of` the accompanying drawings, in which Figure `1 is a vertical section through a charging-hole closure forcoking chambers according to the invention and Figure 2 is a vertical section of the same., charging-hole closure taken through another line;

Figure 3 is a schematic side View of a con- `,trivance `for a horizontal chamber oven, tobe` used for lifting several charging-hole covers,`

i In the brickwork 2 of the chamber roof is` situatedI the charging-hole Lf vThe upper edge of the charging-hole i is covered by a metallic frame 3, which protects the refractory brickwork from damages. Two zing-shaped sealing faces 4 e `The object of my invention is to `improve ,the charging-hole frames and covers of cokeovens This peculiar connection of elevational View partly i (ol. 2oz-25o) and 5, on which rests the charging-hole covers 6 and 1, are provided on to the frame 3 at different heights. i

The charging-hole covers S and 1 are interconnected by means of acurved `flat-iron 8, having the shape of a double hook `which connects a loweryhinge-eye 9 of the cover and a. stay l0 `arranged in a recess Il of the lower charginghole cover l.

This combination of the covers 6 and i allows that the `covers 6 and i can be moved towards one another, to enable the covers 6 and 'lto come to a` proper fit on the sealing lfaces 4 and 5, quite `independently oi the level. On the other hand, the flat-iron 8 acting" asa hinge forms a nonrotary connection of the covers l and 6, so that on turning the upper `charging-hole cover G--for instance to press the cover 6 uniformly against its sealing face li--the lower cover l is also turned, thus` `making, a tight t to the sealing The lower charging-hole cover l is provided with a dove-tail-like extension l2.' to which a plurality of hook-like clamps i3 are fastened, preferably two dish-fshaped holders I3, which can be removably secured by means of screws. The clamps i3 are locked underneath the drawnin` head `lil of a refractory plug i5; which essentially llsthe section of the charging-hole l, and protects the charging-hole cover il against `the heat from below.

work is avoided when raising thecharging-hole covers, but also makes it possible to arrange many charging openings inthe roof of the oven, without increasing thereby the costs for attending the oven. `The arrangementwof a multitude oi?` charging holes in the chamber'roof is of utmost importance in connection with `the carbonization,

since a uniform distribution of the fuel inside` the coking chamber can be effected.

An essenial peculiarity of the lifting device for the charging-hole covers` as `described in the present invention comprises a `latticed girder 20, to the member 2l of which a `series of rbbust hooks" 22 is arranged, which are fastened adjustably in the extension holes 23 bymeans of screws. The latticed girder can be lifted and lowered in its guides 24. The `girder is held by a `Gall-chain or by another suitable pulling device 25, which` runs over the driving roller 26 of a hand-drive 21, and which is equipped at its other end witha balance weight 28. By manipulating the hand crank of` the driving gear the latticed girder can bek lowered and lifted, as required. t

A tie-rod 29, the length of which can be ad-v justed,'further engages a link 30 ofthe latticed girder. This tie-rod 29 leads to a double lever 32, provided with a set handle 3|. The lever is arranged upon the service platform 33 near the driving gear 21. The double lever 32 is supported rotatably at 34 in such a way, that the latticedgirder can be reciprocated in the longitudinal direction by means of the tie rod 29.

This reciprocating movement serves to bring the cover hooks 22 underneath the extracting handles I6 of the charging-hole covers, in case latter are supposed to be raised. The complete lifting device forr the charging-hole covers is secured to the frame 35 of the charging lorry,l comprising the ordinary coal bunkers 3B. This charging lorry travels over the tracks 3i! on the chamber roof by means of the wheels 31.

The manipulation of the lifting device for the charging-hole covers as illustrated on the drawings takes place as follows:

V'l'he coal charging car filled with fresh fuel first is driven to the oven to be charged in such a way, that the latticed girder 20 lies above the charging-hole covers to be lifted.

Thereupon the latticed girder 20 is lowered so far, until the hooks 22 have reached the location of the lifting handles4 `I6 of the charging-hole covers.` This position of the lifting hooks 22 is shown in dash-dotted lines at 22a on Figure 3 of the drawings. The hooks 22 are then brought into the lateral position, marked at 22a, the set ting lever 32 is brought into the left end-position, due to the boshes 32a. As soon as the hooks 22 have reached the necessary height, so that they can` be brought underneath the lifting handles IB by the lateral movement of the latticed girderr 20, the lever 32 is brought back into the operating position, as shown on the drawings. Thereby, the hooks are removed from theyposition indicated at 22a on the drawings, i. e., the hooks 22 will grip underneath the cover handles I6. Since all handles I6 of the charging-hole covers are situated in one line, and, moreover, the hooks 22 are placed in the extension holes 23 at such a spacing, which corresponds to the'distance of the charging-holev covers handle I6, all charging-hole covers of the one oven chamber will be seized by the hooks 22 of the latticed girder at the same time.

The driving gear 2171s now set into action, so that the latticed girder is lifted. Simultaneously, all the charging-holel covers will be removed from the charging holes.

After this has been done, the coal-charging car travels forward until the bunker outlets 36a are y situated within the range of the charging openings 'I, so that the coal can be charged into the chamber.

It is understood that when closing the charging holes, the a'bove described operation will be executed in a reverse order. t

Under certain conditions, it may be advisable to carry out the guides 2| of the latticed girder in such a way that they can be easily adjusted. This is of vspecial advantage in cases where definiterunequalities `have to be adjusted in the arrangement ofthe charging holes.

I have now described my present invention on the lines of a preferred embodimentthereof, but my inventionA is not limited in all its aspects to the mode of carrying out as described and shown,

' comprising several ring-shaped sealing faces, provided in the wall of the charging hole, whereby Athe inside diameter'of the sealing faces will be less than the outer diameter, one Vreplaceable cover of the corresponding section being provided for each sealing face, said covers being interconnectedin `a jointed but unturnable way, the inner cover comprising a refractory plug, and means ybeing provided at the outer cover for manipulating the same. p v

2. A contrivance for closing the charging holes inthe roof of. the coking chambers of coking retort ovens for the production ot gas or coke, comprising several ring-shapedsealing faces. pro-` vided' for in the wallof the charging hole, whereby the inside diameter of the sealing faces will i be less than the outer diameter, one replaceable cover of the corresponding section being'provlded for each sealing face, said covers being connected with one another by means of double hooks, consisting of flat-iron, suitably Aconnecting horizontal with one another by` means of double hooks, con@ sisting of flat-iron, suitably connecting horizontal stays in the covers, said stays having the shape y of U-like projections, and a refractory plug for the inner cover.

4. A contrivance for closing the charging holes in the roof of the coking chambersv of coking retort ovens for the production of gas orcoke. ,I comprising several ring-shaped sealing faces, provided forin the wall of the charging hole, whereby the inside diameter of the sealing faces will be less than the outer diameter, one replaceable cover of the corresponding section being provided for each sealing face, said covers being ,interconnected in a jointed but unturnable way and means provided at the outer cover for manipulating the same, the inner cover'being lined on its lower side with refractory bricks, said lining being fastened by clamps provided on the cover.

5. A contrivance for closing the charging holes in the roof of the coking'` chambers of coking retort ovens for the production of gas or coke, comprising a ring-shaped liner consisting of a suitable metal provided for in the wall of the charging hole, and atvthe inner side of this lining several ring-shaped sealing faces, the inside diameter of them being less than their outer diameter, one replaceable cover of the corresponding section provided for each sealing face, said covers being interconnected in a jointed but unturnable n way, a refractory plug for the inner cover, and

means provided on the outer cover for manipu- 

